<template>
    <div class="header">
        <div class="logo">智慧数据监测管理平台</div>
        <!-- 折叠按钮 -->
        <div class="collapse-btn" @click="collapseChage">
            <i v-if="!collapse" class="el-icon-s-fold"></i>
            <i v-else class="el-icon-s-unfold"></i>
        </div>
        <div class="header-right">
            <div class="header-user-con">
                <!-- 全屏显示 -->
                <div class="btn-fullscreen" @click="handleFullScreen">
                    <el-tooltip effect="dark" :content="fullscreen ? `取消全屏` : `全屏`" placement="bottom">
                        <i class="el-icon-rank"></i>
                    </el-tooltip>
                </div>
                <!-- 用户头像 -->
                <div class="user-avator">
                    <img :src="form.avatar" />
                </div>
                <!-- 用户名下拉菜单 -->
                <el-dropdown class="user-name" trigger="hover" @command="handleCommand">
                    <span class="el-dropdown-link">
                        {{ form.name }}
                        <i class="el-icon-caret-bottom"></i>
                    </span>
                    <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item command="userInfo">个人信息</el-dropdown-item>
                        <el-dropdown-item divided command="loginOut">退出登录</el-dropdown-item>
                    </el-dropdown-menu>
                </el-dropdown>
            </div>
        </div>
        <!-- form个人信息 -->
        <el-dialog title="个人信息" :visible.sync="dialogFormVisible">
            <el-form :model="form">
                <el-form-item label="头像" :label-width="formLabelWidth">
                    <el-upload
                        class="avatar-uploader"
                        :show-file-list="false"
                        :on-success="handleAvatarSuccess"
                        :before-upload="beforeAvatarUpload">
                        <img v-if="form.avatar" :src="form.avatar" class="avatar">
                        <i v-else class="el-icon-plus avatar-uploader-icon"></i>
                    </el-upload>
                </el-form-item>
                <el-form-item label="姓名" :label-width="formLabelWidth">
                    <el-input style="width:300px;" v-model="form.name" autocomplete="off"></el-input>
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button @click="dialogFormVisible = false">取 消</el-button>
                <el-button type="primary" @click="dialogFormVisible = false">保 存</el-button>
            </div>
        </el-dialog>
    </div>
</template>
<script>
import bus from '../common/bus';
export default {
    data() {
        return {
            collapse: false,
            fullscreen: false,
            dialogFormVisible: false,
            form: {
                avatar:'https://zos.alipayobjects.com/rmsportal/jkjgkEfvpUPVyRjUImniVslZfWPnJuuZ.png',
                name:'林邵晨'
            },
            formLabelWidth: '100px',
        };
    },
   
    created() {
    },
    methods: {
        // 用户名下拉菜单选择事件
        handleCommand(command) {
            //退出登录
            if (command == 'loginOut') {
                return;
            }
            //个人信息
            if (command == 'userInfo') {
                this.dialogFormVisible = true;
            }
        },
        handleAvatarSuccess(res, file) {
           // this.imageUrl = URL.createObjectURL(file.raw);
           this.form.avatar=res.data;
        },
        beforeAvatarUpload(file) {
            const isJPG = file.type === 'image/jpeg';
            const isLt2M = file.size / 1024 / 1024 < 2;

            if (!isJPG) {
            this.$message.error('上传头像图片只能是 JPG 格式!');
            }
            if (!isLt2M) {
            this.$message.error('上传头像图片大小不能超过 2MB!');
            }
            return isJPG && isLt2M;
        },
        // 侧边栏折叠
        collapseChage() {
            this.collapse = !this.collapse;
            bus.$emit('collapse', this.collapse);
        },
        // 全屏事件
        handleFullScreen() {
            let element = document.documentElement;
            if (this.fullscreen) {
                if (document.exitFullscreen) {
                    document.exitFullscreen();
                } else if (document.webkitCancelFullScreen) {
                    document.webkitCancelFullScreen();
                } else if (document.mozCancelFullScreen) {
                    document.mozCancelFullScreen();
                } else if (document.msExitFullscreen) {
                    document.msExitFullscreen();
                }
            } else {
                if (element.requestFullscreen) {
                    element.requestFullscreen();
                } else if (element.webkitRequestFullScreen) {
                    element.webkitRequestFullScreen();
                } else if (element.mozRequestFullScreen) {
                    element.mozRequestFullScreen();
                } else if (element.msRequestFullscreen) {
                    // IE11
                    element.msRequestFullscreen();
                }
            }
            this.fullscreen = !this.fullscreen;
        },
    },
    mounted() {
        if (document.body.clientWidth < 1500) {
            this.collapseChage();
        };
    }
};
</script>
<style>
  .avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 50px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    width: 100px;
    height: 100px;
  }
  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 100px;
    height: 100px;
    line-height: 100px;
    text-align: center;
  }
  .avatar {
    width: 100px;
    height: 100px;
    display: block;
  }
</style>
<style scoped>
.header {
    position: relative;
    box-sizing: border-box;
    width: 100%;
    height: 70px;
    font-size: 22px;
    color: #fff;
    background-color: #1bd1a5;
}

.collapse-btn {
    float: left;
    padding: 0 21px;
    cursor: pointer;
    line-height: 70px;
}

.collapse-btn:hover {
    background-color: #1bd1a5;
}

.header .logo {
    font-size: 18px;
    position: relative;
    float: left;
    width: 200px;
    padding-left: 20px;
    line-height: 70px;
    text-align: center;
    /* margin-left: 70px; */
}
.header .logo::before {
    position: absolute;
    left: 166px;
    top: 50%;
    margin-top: -70px;
    height: 70px;
    /* content: url(../../assets/img/logo.png); */
   
    zoom: .3;
}
.header-right {
    float: right;
    padding-right: 50px;
}
.header-user-con {
    display: flex; 
    height: 70px;
    align-items: center;
}
.btn-fullscreen {
    transform: rotate(45deg);
    margin-right: 5px;
    font-size: 24px;
}
.btn-bell,
.btn-fullscreen {
    position: relative;
    width: 30px;
    height: 30px;
    text-align: center;
    border-radius: 15px;
    cursor: pointer;
}
.btn-bell-badge {
    position: absolute;
    right: 0;
    top: -2px;
    width: 8px;
    height: 8px;
    border-radius: 4px;
    background: #f56c6c;
    color: #fff;
}
.btn-bell .el-icon-bell {
    color: #fff;
}
.user-name {
    margin-left: 10px;
}
.user-avator {
    margin-left: 20px;
}
.user-avator img {
    display: block;
    width: 40px;
    height: 40px;
    border-radius: 50%;
}
.el-dropdown-link {
    color: #fff;
    cursor: pointer;
}
.el-dropdown-menu__item {
    text-align: center;
}
 .content-title{
        font-weight: 400;
        line-height: 50px;
        margin: 10px 0;
        font-size: 22px;
        color: #1f2f3d;
    }
      .pre-img{   
        width: 80px;
        height: 80px;
        background: #f8f8f8;
        border: 1px solid #eee;
        border-radius: 40px;
    }
    .crop-demo{
        display: flex;
        align-items: flex-end;
    }
    .crop-demo-btn{
        position: relative;
        width: 80px;
        height: 30px;
        line-height: 30px;
        padding: 0 15px;
        margin-left: 20px;
        margin-bottom: 25px;
        background-color: #409eff;
        color: #fff;
        font-size: 12px;
        border-radius: 4px;
        box-sizing: border-box;
    }
    .crop-input{
        position: absolute;
        width: 100px;
        height: 40px;
        left: 0;
        top: 0;
        opacity: 0;
        cursor: pointer;
    }

</style>
